The Ford Barn

40ford · 02-07-2015, 04:01 PM

The oil pan on my 40 is dripping pretty bad on the bottom of oil pan at that split key.What is the purpose of this key?Is there anything that can be done on the outside to slow leak?

30-9 · 02-07-2015, 04:22 PM

Did u just do an oil change? Sounds like u have too much oil

4tford · 02-07-2015, 04:25 PM

The key is there to keep the drain hole open. The oil will be coming from a leak at the rear seal. Will need to pull the pan to fix.

johnny · 02-07-2015, 07:04 PM

I had the same problem ,oil leaking from the hole under the flywheel .The oil pan has two sections one is under the motor part and holds the oil ,the other is under the fly wheel and is dry .Mine had and quite possible your might have a small rust hole between the two which lets the oil out into the flywheel section. With mine it seemed to be worse when the motor was hot. I dropped the pan welded up the small hole and no more leaks John.

Walt Dupont--Me. · 02-08-2015, 09:49 AM

The 40 Ford 221 engine does not have a rear seal, it has a slinger made on the crank that is supposed to sling the oil back into the pan. There is a cork gasket that seals the back of the pan, it may not on right. if you over fill the oil pan it will leak. Walt

4tford · 02-08-2015, 10:38 AM

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I was referring to the cork as a seal. Also I use a dab of silicone at the corners of the gasket and where it meets the cork.

Ken/Alabama · 02-08-2015, 06:41 PM

It will also leak if the rear main bearing has too much wear or clearence.

Jack E/NJ · 02-08-2015, 10:33 PM

>>>The oil pan on my 40 is dripping pretty bad >>>

Define pretty bad.

Jack E/NJ

40ford · 02-10-2015, 05:38 AM

25 drops in 1 minute while sitting at idle!

Sixseven · 02-10-2015, 06:36 AM

Quote:

Originally Posted by 40ford

25 drops in 1 minute while sitting at idle!

That's "pretty bad". It sounds like some good advice in this post already. Have you pulled the pan?

40ford · 02-10-2015, 07:11 AM

No.Car has been sitting for about 20 years.I was hoping things would get better since it is running again?

Adam/Mill Valley CA · 02-10-2015, 08:01 AM

When my '36 221 Babbit-bearing motor started leaking like that, it turned out the cork gasket mentioned previously, between the two sections of the oil pan, had just disintegrated. No choice but to pull the pan, had the added benefit of clearing a good amount of sludge out of the pan which I didn't really know was there.

Adam

gmc1941 · 02-10-2015, 08:25 AM

Isn't most of our Fords self oiling, ha ha

02-07-2015, 04:01 PM	#1
40ford Senior Member Join Date: May 2010 Location: Cherryville,N.C. Posts: 550	40 Oil Pan Leak: The oil pan on my 40 is dripping pretty bad on the bottom of oil pan at that split key.What is the purpose of this key?Is there anything that can be done on the outside to slow leak?

02-07-2015, 04:22 PM	#2
30-9 Senior Member Join Date: Aug 2014 Location: MA Posts: 888	Re: 40 Oil Pan Leak: Did u just do an oil change? Sounds like u have too much oil __________________ Thanks - 30-9 1939, 1940

02-07-2015, 04:25 PM	#3
4tford Senior Member Join Date: May 2010 Location: Regina Canada Posts: 1,337	Re: 40 Oil Pan Leak: The key is there to keep the drain hole open. The oil will be coming from a leak at the rear seal. Will need to pull the pan to fix.

02-07-2015, 07:04 PM	#4
johnny Senior Member Join Date: May 2010 Location: London On, Can. Posts: 377	Re: 40 Oil Pan Leak: I had the same problem ,oil leaking from the hole under the flywheel .The oil pan has two sections one is under the motor part and holds the oil ,the other is under the fly wheel and is dry .Mine had and quite possible your might have a small rust hole between the two which lets the oil out into the flywheel section. With mine it seemed to be worse when the motor was hot. I dropped the pan welded up the small hole and no more leaks John.

02-08-2015, 09:49 AM	#5
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: 40 Oil Pan Leak: The 40 Ford 221 engine does not have a rear seal, it has a slinger made on the crank that is supposed to sling the oil back into the pan. There is a cork gasket that seals the back of the pan, it may not on right. if you over fill the oil pan it will leak. Walt

02-08-2015, 10:38 AM	#6
4tford Senior Member Join Date: May 2010 Location: Regina Canada Posts: 1,337	Re: 40 Oil Pan Leak: Sponsored Links (Register now to hide all advertisements) I was referring to the cork as a seal. Also I use a dab of silicone at the corners of the gasket and where it meets the cork.

02-08-2015, 06:41 PM	#7
Ken/Alabama Senior Member Join Date: May 2010 Location: Alabama Posts: 3,394	Re: 40 Oil Pan Leak: It will also leak if the rear main bearing has too much wear or clearence.

02-08-2015, 10:33 PM	#8
Jack E/NJ Senior Member Join Date: May 2010 Posts: 2,259	Re: 40 Oil Pan Leak: >>>The oil pan on my 40 is dripping pretty bad >>> Define pretty bad. Jack E/NJ

02-10-2015, 05:38 AM	#9
40ford Senior Member Join Date: May 2010 Location: Cherryville,N.C. Posts: 550	Re: 40 Oil Pan Leak: 25 drops in 1 minute while sitting at idle!

02-10-2015, 07:11 AM	#11
40ford Senior Member Join Date: May 2010 Location: Cherryville,N.C. Posts: 550	Re: 40 Oil Pan Leak: No.Car has been sitting for about 20 years.I was hoping things would get better since it is running again?

02-10-2015, 08:01 AM	#12
Adam/Mill Valley CA Senior Member Join Date: May 2010 Location: Mill Valley,CA Posts: 299	Re: 40 Oil Pan Leak: When my '36 221 Babbit-bearing motor started leaking like that, it turned out the cork gasket mentioned previously, between the two sections of the oil pan, had just disintegrated. No choice but to pull the pan, had the added benefit of clearing a good amount of sludge out of the pan which I didn't really know was there. Adam __________________ 1936 pickup, stock, black 1965 Mustang coupe 289/4bbl, black/red 1971 Alfa Romeo GTV 1750 coupe, dark red/tan 1970 911E 2.2 litre dark blue/black 1968 BMW R50/2 US, black (m'cycle) 1967 Triumph TR6R , sea foam/cream (m'cycle) 2022 Royal Enfield Interceptor 650 red (m'cycle) 1974 Honda CB750 red (m'cycle) 2000 Kawasaki W650 blue/silver (m'cycle)

02-10-2015, 08:25 AM	#13
gmc1941 Senior Member Join Date: Jun 2010 Location: Palatine, Il Posts: 486	Re: 40 Oil Pan Leak: Isn't most of our Fords self oiling, ha ha __________________ 1939 Fordor Deluxe 1939 Ford Coupe Std 1940 Ford pickup Nothing in life is to be feared; it is only to be understood.